package w9;

public class StringDemo5 {
	public static void main(String[] args) {
		char c = '5';
		
		if (c >= '0' && c <= '9') {
			System.out.println(c+ "是数字");
		}
		
		int a = '0';
		int b = '9';
		System.out.println("a = " + a);
		System.out.println("b = " + b);
	}

}
